- Any prior Grade ≥ 3 irAE while receiving immunotherapy - Prior exposure to any anti-PD-1 or anti-PD-L1 antibody - Active or prior documented autoimmune disease within the past 2 years - History of primary immunodeficiency - Symptomatic or untreated central nervous system (CNS) metastases requiring concurrent treatment - Women who are pregnant or lactating - Uncontrolled intercurrent illness - Known history of tuberculosis - Known to be human immunodeficiency virus (HIV) positive - Hepatitis B or C infection - Other invasive malignancy within 5 years